# CVE-2025-59432: libscram-java: SCRAM (Salted Challenge Response Authentication Mechanism) is part of the family of Simple Authentication and Securit...

CVE-2025-59432 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2025-59432, released September 22, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-59432
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0070
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 22, 2025

## Description

SCRAM (Salted Challenge Response Authentication Mechanism) is part of the family of Simple Authentication and Security Layer (SASL, RFC 4422) authentication mechanisms. Prior to version 3.2, a timing attack vulnerability exists in the SCRAM Java implementation. The issue arises because Arrays.equals was used to compare secret values such as client proofs and server signatures. Since Arrays.equals performs a short-circuit comparison, the execution time varies depending on how many leading bytes match. This behavior could allow an attacker to perform a timing side-channel attack and potentially infer sensitive authentication material. All users relying on SCRAM authentication are impacted. This vulnerability has been patched in version 3.1 by replacing Arrays.equals with MessageDigest.isEqual, which ensures constant-time comparison.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libscram-java Debian 14 | 3.2-1 | [DEBIAN-CVE-2025-59432](https://patchblox.com/security/data/fix/linux/debian-cve-2025-59432.md) | Sep 22, 2025 |
| Linux | ongres-scram opensuse-leap 15.6 | 2.1-150400.8.5.1 | [SUSE-SU-2025:4054-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4054-1.md) | Nov 11, 2025 |
| Linux | ongres-scram opensuse-leap 16.0 | 3.1-160000.3.1 | [OPENSUSE-SU-2025:20059-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20059-1.md) | Nov 19, 2025 |
| Linux | ongres-scram sles 15.6 | 2.1-150400.8.5.1 | [SUSE-SU-2025:4054-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4054-1.md) | Nov 11, 2025 |
| Linux | ongres-scram sles 15.7 | 2.1-150400.8.5.1 | [SUSE-SU-2025:4054-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4054-1.md) | Nov 11, 2025 |
| Linux | ongres-scram sles 16.0 | 3.1-160000.3.1 | [SUSE-SU-2025:21016-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-21016-1.md) | Nov 19, 2025 |

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Data as of 2026-11-09T13:31:49Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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